The Miller DuraHoist manhole collar is designed to easily and quickly mount to manhole collars. Simply slip the collar into manhole, tank hatch, or other opening and then mount you DuraHoist mast. That's all it takes and your ready to go.

The DuraHoist collar is available in a variety of sizes:

17.5-in. (.44m) Manhole Collar for use with 18-in. to 20-in.

19.5-in. (.50m) Manhole Collar for use with 20-in. to 22-in.

21.5-in. (.54m) Manhole Collar for use with 22-in. to 24-in.

23.5-in. (.60m) Manhole Collar for use with 24-in. to 26-in.

25.5-in. (.65m) Manhole Collar for use with 26-in. to 28-in.

27.5-in. (.70m) Manhole Collar for use with 28-in. to 30-in.

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